1. Group of Solid Molecular Catalysts Max Planck Institute for Chemical Energy Conversion Striftstr. 34–36 45470 Mülheim an der Ruhr Germany
2. Institute of Technical and Macromolecular Chemistry RWTH Aachen University Worringerweg 2 52074 Aachen Germany
3. thyssenkrupp Industrial Solutions AG Friedrich-Uhde-Str. 15 44141 Dortmund Germany